Viscoelastic Properties of Stimuli-Responsive Transient Polymer Networks DOI
Fumihiko Tanaka

Macromolecules, Journal Year: 2024, Volume and Issue: 57(22), P. 10600 - 10614

Published: Nov. 8, 2024

Chemical reactions in cross-linked polymer networks have long been a focus of science because their strong coupling to the network rheology. In particular, reversible responding various stimuli such as with thermal, pH, light, salt, and mechanical triggers promise broad applications development new concepts materials functions. Herein, rheological properties made up chains, each undergoing first-order chemical reaction A ⇄ B response stimuli, are studied on basis theoretical framework transient model. We show that general there two fundamental relaxation times: one characterizing rate (chemical time) other lifetime cross-links (rheological time). To see interplay specifically, we formation globules, flower micelles, loops, helices, etc., treated calculate dynamic moduli functions constants dissociation cross-links. limit permanent (reactive rubbers), find finite loss modulus shows peak at frequency corresponding time. The storage is reduced but remains angular range below this peak. equilibrium ω = 0 found function reaction. For lifetime, competition independent modes occurs: slow mode mode) fast mode), eigenvalues equation. Thus, complex takes form phenomenological Burgers Their times plateau terms molecular parameters. Viscoelastic reactive Burgersian fluids detail.

Language: Английский

A Comprehensive Review of Stimuli-Responsive Smart Polymer Materials—Recent Advances and Future Perspectives DOI Open Access
Alicja Balcerak, Monika Dzwonkowska-Zarzycka, Janina Kabatc

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(17), P. 4255 - 4255

Published: Aug. 28, 2024

Today, smart materials are commonly used in various fields of science and technology, such as medicine, electronics, soft robotics, the chemical industry, automotive field, many others. Smart polymeric hold good promise for future due to their endless possibilities. This group advanced can be sensitive changes or presence chemical, physical, biological stimuli, e.g., light, temperature, pH, magnetic/electric pressure, microorganisms, bacteria, viruses, toxic substances, review concerns newest achievements area materials. The recent advances designing stimuli-responsive polymers described this paper.

Language: Английский

Citations

8
Thermoresponsive Nanocarriers Transduced by Inorganic Nanoparticles: Design Considerations and Applications in Drug Delivery DOI Creative Commons
Anamarija Nikoletić, Mirela Maleković, Gül Kozalak

et al.

Helvetica Chimica Acta, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 22, 2025

Abstract Thermoresponsive polymers, which undergo phase transitions within physiologically tolerated temperatures, are key to developing drug delivery systems (DDS) with precise spatial and temporal control, potentially addressing challenges associated the treatment of complex diseases. Inorganic nanoparticles unique optical, electronic, magnetic properties serve as efficient transducers, converting external stimuli into localized heat trigger thermoresponsive nanocarriers. This review explores design application nanocarriers transduced by inorganic DDS. Following a brief description temperature‐triggered transition polymers generation mechanisms nanoparticles, strategies integrate these components hybrid described. Examples demonstrating utility advanced DDS discussed, highlighting their potential for release alongside theranostic capabilities combining therapy imaging. Despite in design, synthesis, biological applications, polymer‐inorganic hybrids hold immense promise transforming biomedical innovations.

Language: Английский

Citations

0
Integrating computational models for stimuli-responsive hydrogel nano/micromotor and microrobots for smart and sustainable bioactuator devices DOI
Onome Ejeromedoghene, Moses Kumi, Ahmed Olalekan Omoniyi

et al.

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 46, P. 102704 - 102704

Published: April 15, 2025

Language: Английский

Citations

0
PolyConstruct: Adapting Biomolecular Simulation Pipelines for Polymers with PolyBuild, PolyConf, and PolyTop DOI
Rangika Munaweera, Ada Quinn,

Luna Morrow

et al.

Journal of Chemical Information and Modeling, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Molecular dynamics simulations are invaluable tools that provide both a molecular understanding and means for the rational design of polymers. A key bottleneck in current polymer is lack comprehensive generalizable method streamlines preparation novel architectures chemistries. Here, we present PolyConstruct, computational framework leverages GROMACS biomolecular simulation package force field agnostic atomistic biocompatible stimuli-responsive PolyConstruct contains three workflows, PolyBuild, PolyTop, PolyConf, generating chemically accurate topology parameters from monomer structural coordinates complex We highlight utility robustness PolyConf with examples linear, branched, star, dendritic

Language: Английский

Citations

0
Reversible Switching and Recycling of Thermoresponsive 1,2,4-Triazolium-Based Poly(ionic liquid) Catalysts for Porous Organic Cage Synthesis in Organic Media DOI Creative Commons

Jiefeng Zhu,

Feng Chen, Mingjie Zhang

et al.

ACS Macro Letters, Journal Year: 2025, Volume and Issue: unknown, P. 458 - 463

Published: March 23, 2025

Homogeneous catalysts of high activity and selectivity often face challenges in the separation from feedstocks products after reactions. In contrast, heterogeneous are easier to separate, usually at cost compromised catalytic performance. By designing capable switching between homogeneous states for catalysis separation, merits both could be synergistically combined. this study, a thermoresponsive 1,2,4-triazolium-based poly(ionic liquid) (PIL) was applied as temperature-switchable organocatalyst controlled synthesis porous organic cages methanol. Variation reaction temperature induced phase transition PIL, causing polymer chains dissolve or collapse methanol, thereby exposing shielding catalytically active sites proceed retard reaction, respectively. To note, sufficiently low temperature, PIL catalyst precipitated out its methanol solution separated by centrifugation filtration reuse, similar common catalysts. Such switchable recyclable properties polymeric will inspire design efficient adaptable hybrid nanoreactors liquid media.

Language: Английский

Citations

0
New Family of Multistimuli-Responsive Acrylamide-Based Homopolymers: Synthesis, Responsive Behavior, and Application in Controlled Release DOI
Ke Wang, Xiaofang Liu, Ziyan Li

et al.

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Language: Английский

Citations

0
Novel amphiphilic multistimuli-responsive diblock copolymers and comparison between their self-assembly and controlled release behavior DOI
Ke Wang, Meiyu Si, Xiaofang Liu

et al.

European Polymer Journal, Journal Year: 2024, Volume and Issue: 219, P. 113409 - 113409

Published: Aug. 29, 2024

Language: Английский

Citations

1
Preparation and characterization of temperature/pH/CO2-triple-responsive homopolymers and their substituent determined response DOI
Ke Wang, Zilong Wang, Meiyu Si

et al.

Polymer Chemistry, Journal Year: 2024, Volume and Issue: 15(27), P. 2780 - 2789

Published: Jan. 1, 2024

Novel temperature/pH/CO 2 -triple responsive homopolymers bearing different end substituents which showing properties, and they have good application prospects in self-assembly, biomedicine other fields.

Language: Английский

Citations

0
Viscoelastic Properties of Stimuli-Responsive Transient Polymer Networks DOI
Fumihiko Tanaka

Macromolecules, Journal Year: 2024, Volume and Issue: 57(22), P. 10600 - 10614

Published: Nov. 8, 2024

Chemical reactions in cross-linked polymer networks have long been a focus of science because their strong coupling to the network rheology. In particular, reversible responding various stimuli such as with thermal, pH, light, salt, and mechanical triggers promise broad applications development new concepts materials functions. Herein, rheological properties made up chains, each undergoing first-order chemical reaction A ⇄ B response stimuli, are studied on basis theoretical framework transient model. We show that general there two fundamental relaxation times: one characterizing rate (chemical time) other lifetime cross-links (rheological time). To see interplay specifically, we formation globules, flower micelles, loops, helices, etc., treated calculate dynamic moduli functions constants dissociation cross-links. limit permanent (reactive rubbers), find finite loss modulus shows peak at frequency corresponding time. The storage is reduced but remains angular range below this peak. equilibrium ω = 0 found function reaction. For lifetime, competition independent modes occurs: slow mode mode) fast mode), eigenvalues equation. Thus, complex takes form phenomenological Burgers Their times plateau terms molecular parameters. Viscoelastic reactive Burgersian fluids detail.

Language: Английский

Citations

0